US Patent Issued to Sandvik Mining and Construction on Nov. 25 for "Arrangement and method for heating hydraulic impact device" (Finnish Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,364, issued on Nov. 25, was assigned to Sandvik Mining and Construction Oy (Tampere, Finland).

"Arrangement and method for heating hydraulic impact device" was invented by Jarno Viitaniemi (Tampere, Finland), Pertti Parkkinen (Tampere, Finland), Martti Leskinen (Tampere, Finland), Mikko Hamalainen (Tampere, Finland), Perttu Koivumaki (Tampere, Finland), Timo Kela (Tampere, Finland) and Ville Kohola (Tampere, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An arrangement and method for heating an impact device of a rock treating machine (Rtm) in low-temperature operating conditions is provided. The arrangement includes a warm-up mode (WM) for ...